Profits, Commercial Food Supplier Involvement, and School Vending Machine Snack Food Availability: Implications for Implementing the New Competitive Foods Rule
http://www.bridgingthegapresearch.org/research/terry-mcelrath2014_jsh/
Terry-McElrath Y.M., Hood N.E., Colabianchi N., O'Malley P.M. and Johnston L.D. Journal of School Health. 2014; 84(7):451-458.